/**
 * Copyright (c) 2008, Piercarlo Slavazza
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * The name of Piercarlo Slavazza cannot be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY Piercarlo Slavazza ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL Piercarlo Slavazza BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.libapml;

import java.io.File;
import java.io.IOException;
import java.security.InvalidParameterException;

import com.libapml.indexer.ApmlIndexer;
import com.libapml.util.Helper;

public class ApmlFactory {

	public static ApmlIndex buildApmlIndex(File folder) throws IOException, ApmlException {
		return buildApmlIndex(folder, false);
	}
	
	public static ApmlIndex buildApmlIndex(File folder, boolean useStopwords) throws IOException, ApmlException {
		
		ApmlIndex index = null;
		
		Helper.checkNotNull(folder);
		
		if (!folder.exists()) {
			throw new InvalidParameterException("Folder " + folder.getPath() + " does not exist.");
		} else {
			if (!folder.isDirectory()) {
				throw new InvalidParameterException("File " + folder.getPath() + " is not a directory.");
			} else {
				ApmlIndexer indexer = new ApmlIndexer(useStopwords);
				try {
					indexer.add(folder);
				} finally {
					indexer.close();
				}
				
				index = LuceneReader.read(indexer.getLuceneWriter().getLuceneDirectory());
			}
		}
		
		return index;
	}
	
}
